US3881314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission chain
Assignee: Individual
•
Filing: 1973-08-15
•
Granted: 1975-05-06
•
Expires: 1993-08-15
Abstract
Abstract A plurality of spaced transverse webs connect two chain belts, each web consisting of two layers of stamped sheet metal, and the two layers being formed to provide at least one opening between the layers to conduct a power supply line.
Inventors
- 👤 Kurt Hennig
- 👤 Hans-Peter Schmidberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:51
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/12; F16G13/16; F16L; F16L3/00; F16L3/22; F16L3/223; F16L3/2235; H; H02; H02G; H02G3/00; H02G3/02; H02G3/04; H02G3/0456
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
A connecting web, for a power transmission channel having at least two chain belts transversely connected by a plurality of such webs, said connecting web a. having greatly improved stiffness for its weight, b. being formed of sheet metal strips each having a width substantially greater than its thickness, the width of each strip extending longitudinally of the channel, and c. consisting of two superimposed parts, each part being composed of a plurality of U-shaped sections with the legs of adjacent sections secured together in flat contact, the legs of each U-shaped section of one part being opposed to the legs of a corresponding U-shaped section of the other part, whereby said corresponding sections form an opening to receive a power supply line, and each part having a bracket interposed between two adjacent U-shaped sections and aligned with the bracket on the other part, for receiving a screw to hold the two parts together.
Claim 2
Dependent Claim
154 words
A connecting web, for a power transmission channel having at least two chain belts transversely connected by a plurality of such webs, said connecting web a. having greatly improved stiffness for its weight, b. being formed of sheet metal strips each having a width substantially greater than its thickness, the width of each strip extending longitudinally of the channel, and c. consisting of two superimposed parts, each part being composed of a plurality of U-shaped sections with the legs of adjacent sections secured together in flat contact, the legs of each U-shaped section of one part being opposed to the legs of a corresponding U-shaped section of the other part, whereby said corresponding sections form an opening to receive a power supply line, and each part having a bracket interposed between two adjacent U-shaped sections and aligned with the bracket on the other part, for receiving a screw to hold the two parts together.
Claim 3
Dependent Claim
33 words
A connecting web according to claim 1 wherein a central boss is formed at the top of each leg of each U-shaped section, and such bosses of adjacent U-shaped sections are secured together.
Claim 4
Dependent Claim
27 words
A connecting web according to claim 2, wherein the adjacent bosses and contacting legs of two adjacent sections are secured together by projection welding at three points.
Claim 5
Dependent Claim
17 words
A connecting web according to claim 2, wherein each part is provided with a central stiffening rib.
Claim 6
Dependent Claim
26 words
A connecting web according to claim 4, wherein the two edges of each part are flared outward and the central rib is an outwardly pressed rib.
Claim 7
Dependent Claim
27 words
A connecting web according to claim 1, wherein the two edges of the arch portion of each U-shaped section are flared outward to stiffen the arch portion.
Claim 8
Dependent Claim
22 words
A connecting web according to claim 6, wherein the arch portion of each U-shaped section has an outward pressed central stiffening rib.
Claim 9
Dependent Claim
34 words
A connecting web according to claim 1, wherein at each end of each web there is provided a bracket having a bore to receive a screw for securing the web to a chain belt.
References Cited (Backward Citations)
US1695371A
Cited
US1831978A
Cited
US2975807A
Cited
US3157376A
Cited
US3382668A
Cited
US3716986A
Cited
US3772875A
Cited
US3782670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |